baber/WOPTO huggingface dataset:
Patent AT-405154-B (AT)
Title: Heating/ventilation device for vehicles
Inventor: AIGNER REINHARD DIPL ING
IPC: B60H1/00
Filed: 1994-02-28
Granted: 1999-06-25
Abstract: Heating/ventilation device for rail vehicles, which has a fresh-air ventilator 2 and a hot-air ventilator 3, the intake side of the fresh-air ventilator 2 being connected to a fresh-air inlet 6 and the delivery side of the fresh- air ventilator 2 being connected, on the one hand, to the intake side of the hot-air ventilator 3 and, on the other hand, to a ventilation connection 7, and the delivery side of the hot-air ventilator 3 being connected, with the interposition of a heating means 4, to a hot-air outlet 8, it being possible for the two ventilators 2, 3 to be operated and controlled independently of each other, so that essentially the following operating modes are possible: a) a ventilation mode with the fresh-air ventilator 2 switched on and the hot-air ventilator 3 switched off, in which the main air flow runs from the fresh-air inlet 6 via the fresh-air ventilator 2 to the ventilation connection 7, <IMAGE> b) a heating mode with the fresh-air ventilator 2 switched on and the hot-air ventilator 2 switched on, with mixed air, and <IMAGE> c) a preheating mode with the fresh-air ventilator 2 switched off and the hot-air ventilator 3 switched on, in which circulating air flows via the ventilation connection 7 and the hot-air ventilator 3 and also the heating means 4 to the hot-air outlet 8. <IMAGE>
Patent AT-401219-B (AT)
Title: Device for monitors of computer systems or the like
IPC: A47B81/06
Filed: 1991-04-23
Granted: 1996-07-25
Abstract: In a device for adjusting the height and inclination of a support 13, connected to a table, for monitors of computer systems or the like, levers 5, 17, which are mounted on the table so that they can be pivoted and can be adjusted by means of screw spindles 9, 21, are fitted in an articulated manner to the support 13. In order to achieve particularly simple and reliable adjustment, the support 13 is connected to the ends of the levers 5, 17 so that it can pivot at two shafts 8, 29 which are located at a distance from each other, which can be pivoted about a lever axis 4 running parallel to the support 13 and on which the screw spindles 9, 21 act, one 8 of the shafts being displaceable on the support 13. <IMAGE>
Patent DK-165546-B (DK)
Title: Pharmaceutical preparation in unit dose form for treating peptic ulcer
Inventor: BUYNISKI JOSEPH P
IPC: A61K31/13
Filed: 1984-01-10
Abstract: The compsn. comprises pepstatin (I) together with a cyclobutene-3,4-dione deriv. of formula (II) or its acid-addn. salt, hydrate or solvate, together with a carrier. In the formula R1 and R2 are H or alkyl, or R1 is H and R2 is allyl, proparagyl, cycloalkyl(alkyl) cyanoalkyl, 2-fluoroethyl, 2,2,2-trifluoroethyl, OH, 2,3-dihydroxypropyl, R3R4C6H3(CH2)p or R5-pyridinyl-(CH2)q; p and q are 1-6; R3 and R4 are H, alkyl, OH, alkoxy or halogen; or R3 is H and R4 is CF3; or R3 + R4 form OCH2O; R5 is H, alkyl, alkoxy, OH, NH2 or halogen; m is 0-2; n is 2-5; Z is S, O, or CH2; A is furyl, thienyl, phenyl, or pyridinyl all substd. by R8R9N(CH2)r and by R6- ; R6 is H, alkyl, alkoxy or halogen; r is 1-4; R8 and R9 are H, alkyl, allyl, propargyl, alkoxyalkyl, cycloalkyl or Ph-alkyl; or NR8R9 is pyrrolidino, (di)methyl pyrrolidino, morpholino, thiomorpholino, piperidino, (di)methylpiperidino, hydroxypiperidino, N-methylpiperazino, 1,2,3,6-tetrahydropyridino, 3-pyrrolidono, homopiperidino, hepta- or octa-methyleneimino or 3-azabicyclo (3.2.2)nonane. Cpds. (II) are histamine H2 receptor antagonists and many of them are described in GB2067987 and some cpds. have much greater potency than cimetidine on oral admin. When (II) is administered in compsns. with (I), their potency is increased, so that the effective dosage may be reduced.
Patent HU-187331-B (HU)
Title: Plough supplemental device
Inventor: SOMMER LEOPOLD
IPC: A01B49/02
Filed: 1981-04-08
Abstract: The invention relates to a plough accessory for crushing clods of earth. It has jib-like securing spars (1 and 2), a longitudinal spar (3) and also a number of bearing frames (4) for the work wheels (5) effecting the crushing. The accessory is designed as a longitudinal spar (3) which presses the work wheels (5) onto the soil, has a shock-absorbed compensation spring-suspension (springs 6) and is vertically adjustable and can be arranged on the plough in such a way that it can be adjusted and secured. In this way an individual adjustability of the device to practically all plough types is achieved. In addition, the height of compaction of the soil can be set exactly and can also be maintained as a result of the fixed arrangement on the tractor (advantage compared to tractor-pulled devices). <IMAGE>
Patent LT-4491-B (LT)
Title: Use of tricyclic 1,4-dihydro-1,4-dioxo-1h-naphtalene derivatives, resulting novel compounds and therapeutical use thereof
Inventor: BOUTHERIN-FALSON ODILE
IPC: A61K31/42
Filed: 1998-06-10
Abstract: The therapeutical use of tricyclic derivatives and pharmaceutically acceptable salts thereof having general formula (I), for treating diseases related to venous function deficiency and/or inflammatory oedema, is disclosed. In general formula (I), A is a sulphur or oxygen atom or a radical R3N where R3 is a hydrogen atom, a C1-5 alkyl radical or an optionally substituted aromatic or heteroaromatic ring; R1 is either a C1-5 alkyl radical, or a radical R4NH where R4 is a hydrogen atom, a C1-5 alkyl radical or an optionally substituted aromatic or heteroaromatic ring, or an aromatic ring optionally substituted by one or more acceptor or donor groupings, or a heteroaromatic ring having one or more heteroatoms and being optionally substituted by acceptor or donor groupings; and R2 is a hydrogen atom, a halogen atom, a C1-5 alkyl radical, an oxygen atom optionally substituted by a C1-5 alkyl radical, or a radical NR5R5', where each of R5 and R5' is independently a hydrogen or oxygen atom or C1-5 monovalent organic radicals.
Patent ME-00977-B (ME)
Inventor: REINHARDT JOEL C
IPC: C07K16/22
Filed: 2008-08-08
Abstract: Humano antitelo ili antigen-vezujući fragment antitela, koji specifično vezuje humani nervni faktor rasta (NGF), sa KD od 5 pM ili manje, bez unakrsnog reagovanja sa neurotrofinom-3 (NT-3), i vezuje humani NGF sa KD od oko 2 do oko 10-puta većom u odnosu na onu kojom antitelo ili fragment vezuje NGF pacova i miša. Antitela su korisna u tretmanu bola, uključujući inflamatorni bol, bol nakon operativne incizije, neuropatski bol, bol frakture, bol osteoporozne frakture, post-herpesnu neuralgiju, osteoartritis, reumatoidni artritis, kancerski bol, bol koji proističe iz opekotina, bol kod zglobnog gihta, kao i bolesti, kao što su: hepatocelularni karcinom, rak dojke i ciroza jetre.
Patent YU-45696-B (YU)
Title: Uređaj komunikacionog multipleksera sa programom promenljivog prioriteta
Inventor: HIRTLE A C
IPC: H04L69/14
Filed: 1985-01-25
Abstract: UREĐAJ KOMUNIKACIONOG MULTIPLEKSERA SA PROGRAMOM PROMENLJIVOG PRIORITETA, u ulazno/izlaznom sistemu koji obezbedjuje komunikaciju podacima izmedju većeg broja uredjaja 18, 20, 21, 22, 24.... spregnutih na jedan komunikacioni vod 17 i sistema za obradu podataka, gde se u okviru ulazno/izlaznog sistema svakom od uredjaja 18, 20, 21, 22, 24... dodeljuje broj kanala, i kada je uredjaj spreman za komunikaciju podacima sa sistemom za obradu podataka on šalje signal zahteva na komunikacioni vod 17 po prijemu svog respektivnog broja kanala sa voda 17, naznačen time, što je kolo na principu prvi izlazi (FIFO) (500, 506, 508) za skladištenje brojeva kanala spregnuto sa izlaza kola (508) za pomeraj signala na upravljački ulaz brojačko-registarskog kola (504) za generisanje niza brojeva kanala pri čemu su izlazni priključci FIFO memorije (500) spregnuti na ulazne priključke brojačko-registarskog kola (504) čiji su izlazni priključci vezani vodovima (LSCANO + -LSCAN3 +, LSCAN +) na prvu grupu ulaznih priključaka prekidača (502) za recirkulaciju brojeva kanala za vreme operacije pulovanja gde su izlazni priključci prekidača (502) vezani na ulaze FIFO memorije (500), pri čemu su izlazni priključci brojačko-registarskog kola (504) takodje vezani preko šine podataka (72) i interfejsa linijskog adaptera (66) na komunikacioni vod (17) i uredjaje (18, 20, 21, 22, 24...). Prijava sadrži još 1 patentni zahtev.
Patent YU-49163-B (YU)
Title: Plastic receptacle with lid
Inventor: BLUMENSCHEIN MARCUS
IPC: B65D43/02
Filed: 1999-11-12
Abstract: Disclosed is a plastic receptacle having a lid (1). The receptacle includes an upper edge and the lid (1) includes an area (2) encompassing the upper edge. The area (2) includes a side (3) which radially faces inwards. The lid also includes a middle area (4) surrounded by the first area (2) and an outer area (5) extending downwards. Furthermore, the lid (1) is provided with box-shaped projections (6) on its side (3) which radially faces inwards. The aim of the invention is to achieve better centering and better stability of the stacked-up receptacles having lids (1) by maintaining a low stack height of the lids (1). To this end, the side (3) of the lid (1) which faces radially inwards has a surrounding terracing (7) which has approximately the same width as the projections (6) and the projections (6) are arranged on the terracing (7) and extend to the upper edge of the encompassing area (2) of the lid (1).
Patent YU-48799-B (YU)
Inventor: ELEKTROTEHNICAR ABCI FRANJA
Filed: 1995-09-18
Abstract: Suvi kotao za prozivodnju pregrejane pare bez prethodnog tretiranja radnog fluida, čiji stacionarni ili na točkovima pokretni vertikalni kotao (1,1') ima cilindrični plašt (2) odozgo zatvoren poklopcem (5), sa priključkom (7) za radni fluid, manometrom (8), regulacionim ventilom (9), ventilom (10) sigurnosti i eventualnom pumpom (11) za dovod vode u kotao (1,1'), dok su na cevovodu (14) za odvod pare radnog fluida ugrađeni kontrolni manometar (15), termometar (16), ventil (17) sigurnosti i ručna slavina (18), naznačen time, što je u sredini gornjeg dela plašta (2), vertikalno ispod poklopca (5), učvršćen kalibrisani raspršivač (6) radnog fluida, odnosno vode, pri čemu je raspršivač (6) u protočnom spoju sa priključkom (7) za vodu, što je unutar cilindričnog plašta (2) po obimu simetrično obešeno više električnih grejača (12) na međusobno jednakom rastojanju, što su krajevi u obliku latiničnog slova U - savijenih grejača (12) učvršćeni za poklopac (5) na kojem je revizioni otvor (13) i što je donji kraj cilindričnog plašta (2) konusno nadole sužen u taložnik (3) sa ručnom slavinom (4) za ispuštanje eventualnog kondenzata vode, kamenca i drugih čvrstih materija. Prijava sadrži još 2 zavisna zahteva.
Patent ZA-93594-B (ZA)
Title: Alkene oligomerisation.
Inventor: MATHYS GEORGES MARIE KAREL
IPC: C07C31/00
Filed: 1993-01-27
Abstract: In a process for the oligomerization of C2-C12-alkenes, an alkene-containing feedstock having a water content of from 0.05 to 0.25 molar %, based on the hydrocarbon content of the feedstock, is passed over a zeolite catalyst. Improved alkene conversion and catalyst life are obtained compared to processes in which non-hydrated feedstocks are used.
Patent AT-402202-B (AT)
Title: Process for the reutilization of dusts obtained in the reduction of iron ore
Inventor: GRUENBACHER HERBERT
IPC: C22B7/02
Filed: 1995-07-06
Granted: 1997-03-25
Abstract: In a process for the useful reutilization of dusts formed in the reduction of iron ore using a reducing gas and precipitated in a scrubber in the form of sludges, the sludges are first dewatered and used as starting material for cement production.
Patent AT-404995-B (AT)
Title: Method of metering corrosion-preventing agents
Inventor: BIRKNER FRIEDRICH DR
IPC: G05D11/00
Filed: 1996-11-07
Granted: 1999-04-26
Abstract: In a method of metering corrosion-preventing agents and additives, such as silicic acids, silicic acid compounds, earth alkali compounds and/or aluminium oxide in incineration plant, such as refuse incineration plant or power-station incineration plant, the alkali content in the combustion chamber is determined by means of emission spectrography and/or measurement of the conductivity of the coatings on the boiler walls via electrodes. If the alkali content increases and/or the conductivity increases, the amount of corrosion-preventing agents or additives is increased.
Patent AT-388705-B (AT)
IPC: A47K3/02
Filed: 1987-08-24
Granted: 1989-08-25
Abstract: A composite panel from which an internal bathtub casing can be manufactured by deep drawing, in which a coating of poly(methyl methacrylate) (PMMA, acrylic glass) is placed on a substrate of acrylonitrile-butadiene-styrene (ABS) in particular, which coating is provided with a top coat which consists of 30-70 weight % polyvinylidene fluoride (PVDF), and the remainder of poly(methyl methacrylate).
Patent AT-391137-B (AT)
IPC: C07D501/34
Filed: 1987-10-08
Granted: 1990-08-27
Abstract: Cephalosporin derivatives of the formula <IMAGE> in which m represents 0, 1 or 2, R<1> represents hydrogen or an acyl group, R<2> represents hydrogen, lower alkoxy, amino, lower alkylthio or lower alkanoylamino, R<3><1> represents hydrogen, lower alkyl, lower alkenyl, C3-C7-cycloalkyl, halogen-lower alkyl or halophenyl; Z represents R<3><0>-C or nitrogen, R<3><0> represents hydrogen or halogen, or R<3><0> and R<3><1> together represent a C3-C5-alkylene group, a C2-C4-alkylene- monooxy group or a C1-C2-alkylenedioxy group, R<3><2> represents hydrogen, halogen, lower alkyl or an optionally substituted 5- or 6-membered heterocyclic ring having one, two or three oxygen, nitrogen and/or sulphur atoms and R<3><3> represents hydrogen or halogen or R<3><2> and R<3><3> together represent a C1-C4-alkylenedioxy group, and easily hydrolysable esters and salts of these compounds and hydrates of the compounds of the formula I or of their esters and salts are described. The products have antimicrobial activity.
Patent AT-396092-B (AT)
Title: Coupling housing for receiving a trailer coupling ring of a trailing coupling for towing vehicles, in particular tractors
IPC: B60D1/02
Filed: 1989-12-18
Granted: 1993-05-25
Abstract: A coupling housing 2 for receiving a trailer coupling ring 4 of a trailing coupling 1 for towing vehicles has a coupling jaw 3 which is delimited by an upper cover wall 2b, a lower base wall 2c and a rear rounded portion 2a, a coupling bolt 6, which can be displaced in its longitudinal direction, engaging through the cover and base wall 2b, c and forming in each case an edge bead 5a, 7a, and the rear rounded portion 2a having a lining made of elastic rubber material in order to compensate play between the coupling bolt 6 and trailer coupling ring 4. In order to achieve a relatively wear-resistant and effective damping device, the lining 9 of the coupling jaw 3 continues beyond its lower rounded portion 2a in the form of tabs 9a which engage around the edge beads 5a, 7a of the cover wall and base wall 2b, c. <IMAGE>
Patent DK-161028-B (DK)
Inventor: SKJOLD A CHRISTOPHER
IPC: C12Q1/44
Filed: 1985-04-03
Abstract: A composition and test device for determining the presence of an analyte selected from leukocytes, esterase and protease in a test sample. The composition comprises an ester capable of producing a detectable response upon interaction with said analyte, and a diazonium salt having the structurein which A is an anion, and R same or differ, is H, lower alkyl, aryl, or both of R together form a fused ring system, and in which R' is H, OH or lower alkyl.
Patent DK-154233-B (DK)
Inventor: COUSIN STEPHANE
IPC: E04D3/35
Filed: 1983-10-26
Abstract: This invention relates to a fibrous panel and to a process and apparatus for its manufacture, the panel includes a dense felt mat (2) of mineral fibres having on at least one of its main surfaces an impervious covering (3, 7) consisting of a reinforcing film (3) of mineral fibres impregnated with a binder, for example bitumen, and bonded to the felt (2) by the binder, and having, on the external surface, a separating agent (7) glued to the film (3) by the binder, the agent (7) being self welding in the heat. The panels according to this invention are advantageous for the insulation and weatherproofing of roofs, especially those with only a slight slope, in particular on account of their reliability in use as well as that of the impervious coverings for which they serve as support.
Patent DK-158208-B (DK)
Inventor: MULDER ARNOLD
IPC: C02F3/30
Filed: 1981-11-06
Abstract: A purification process for waste water and/or waste water sludge, comprising a methane fermentation and subsequent oxidation of the reduced compounds present in the effluent of the methane fermentation by means of aeration, whereby the sulphide from the effluent of the methane fermentation is used as electron donor by the denitrification and whereby the residual reduced compounds from the liquid effluent from the methane fermentation not until the subsequent next step are oxidized by aeration. 
<??>In this way the suiphldes, produced by the methane fermentation, are used in appropriate way and simultaneously converted in non troublesome or innocent sulphate. 
<??>In the liquid effluent, remaining after denitrification, the ammonia, which was occurring in the effluent is still present; this ammonia is subsequently oxidized into nitrate at the aeration, whereby the sulphide cannot interfere with, as this sulphide was converted in sulphate with the denitrification. As no sulphide is more present, the aeration is demanding less air and aeration may moreover be more simple. 
<??>The hydrogen suiphide from the gas formed by the methane fermentation also may be used for this purpose, giving in this way the greatest utility of the products formed with the methane fermentation, while the gas is purified in a simple way.
Patent DK-154983-B (DK)
Inventor: SAEMANN KARL
IPC: B60K17/04
Filed: 1983-12-09
Abstract: The vehicle engine drives through a gearbox half-shafts (66) and final drive reduction units (68). In order to reduce manufacturing costs without introducing excessive wear, the gearboxes of a range of vehicles (covering say a 2:1 power range) are alike. The increased power up the range is transmitted by driving the gearbox faster via an equalizing gear (16) which may be separated or an input stage of the gearbox (90) itself. The torques at the output (12) of the equalizing gears are the same throughout the range. The final drive reduction (68) have different ratios such as to establish the correct wheel speed throughout the range, taking into account also different wheel dimensions. The final drive reduction units (68) are two stage planetary units capable of high reductions needed at the top of the power range. The two stages (94, 96) have rotationally fast planet wheels (100, 102) in a common carrier (104) which also forms the wheel hub. The first stage (94) has only an input wheel, namely a sun wheel (98) which is fixed to the half shaft (66) while the second stage (96) has only a fixed wheel which is a sun wheel (106) in the case of lower power vehicles. The fixed sun wheel is replaced by a fixed annulus in the case of a higher power vehicle.
Patent DK-163728-B (DK)
Inventor: BERGSTROEM ANDERS
IPC: B65G47/88
Filed: 1987-11-11
Abstract: Device for braking articles to be conveyed on a conveyor whereby providing a pair of tubes (2), (2) of predetermined length so formed as to maintain the flatness of braking surfaces (2a), (2a) that are inflatable end surfaces inflated in both directions of articles to be conveyed (C), interposing between themselves the traversing direction of conveyor (1) strip whose traversing surface is flat on the inside of a pair of side walls (7), (7) in a manner that articles to be conveyed (C) can pass on travelling conveyor (1) and that both ends of articles to be conveyed (C) are interposed with said rubber tubes (2), (2) which are inflated by being fed with air and by providing side guide members (5), (5) and (6), (6) to guide articles to be conveyed (C) by interposing said rubber tubes (2), (2) at a position in the proximity of the upper portion of each side wall (7), (7) and the lower portion of each rubber tube (2), (2).
Patent FI-100693-B (FI)
Inventor: HOFFMANN RAINER
IPC: A61M37/00
Filed: 1991-01-25
Granted: 1998-02-13
Abstract: The invention relates to a transdermal therapeutic system containing tulobuterol or one of its pharmaceutically compatible salts as active ingredient, comprising a backing layer which is essentially impermeable to active ingredient, and at least one matrix layer which contains the active ingredient and contains at least one styrene/1,3-diene/styrene block copolymer, and to a process for the production thereof.
Patent FI-114914-B (FI)
Inventor: GUBIN JEAN
IPC: A61K31/40
Filed: 1991-08-02
Granted: 2005-01-31
Abstract: Heterocycles of formula (I) and their pharmaceutically acceptable salts are new. Het = gp. (i)-(iii), T = RRaN, R and Ra = H, 1-4C alkyl or SO2R1, R1 = 1-6C alkyl, CF3, phenyl, benzyl or benzoyl (all opt. substd.) or Ra and R1 together form a 3-6C cyclic sulphonamide, T' = H, NO2 or RRaN, T'' = benzyloxycarbonyl, T''1-OCO, T''2, T''3N.CO or NRRa, T''1, T''2 and T''3 = H or 1-4C alkyl or T''2 and T''3 together complete a 4-6C ring, X = O or S, Y = CO, CHOR5 or CH2, R5 = H, 1-4C alkyl or COR'4, R'4 = 1-4C alkyl, R1 = 1-6C alkyl or phenyl (opt. substd.), R2 = H or 1-6C alkyl, R3 =- 1-6C alkyl or R6-alk, or R2 and R3 are together a 3-6C alkylene or alkenylene (opt. substd.) and opt. interrupted by O, NH, N= or NR7, alk = bond or 1-5C alkylene, R6 = pyridyl, phenyl, phenoxy (the last 2 opt. substd. by 1 or more of halo or 1-4C alkyl or alkoxy) or 3,4-methylene dioxyphenyl, R7 = 1-4C alkyl or phenyl, R4 = H, 1-4C alkyl, R'1SO2 or R74R''4N-(CH2)m, R'1 = 1-4C alkyl, phenyl or benzyl (both opt. substd.), R'4 and R''4 = 1-4C alkyl, m = 1-3, A = O, S or NHCO. When W and W' are each =CH- or N, Z = O or S but when W = =CH-and W' = =CR8-, Z = -CH=CR'8-, R8 and R'8 = H, halo or 1-4C alkyl or alkoxy, n = 1-5 provided than when R4 = SO2R'1, T' is H, NO2 or cyclised RRaN. 5 Cpds. are specifically claimed, including 2-(n-butyl)-3-(4-(3-di-n-butylamino -propoxy) benzoyl)-5-methylsulphonamido -benzofuran.
Patent FI-105210-B (FI)
Inventor: VOSTERS PHILIPPE
IPC: E04F15/10
Filed: 1993-02-11
Granted: 2000-06-30
Abstract: A floor- and/or wall-covering formulation comprising:   (a) 100 parts by weight of an optionally functionalized, linear or star-shaped diene block copolymer containing at least one block derived from predominantly conjugated diene having a number average molecular weight in the range of from 20,000 to 100,000, which optionally has been hydrogenated whereby at least 80% of the aliphatic double bonds has been hydrogenated; (b) 100-400 parts by weight of polyethylene or a copolymer of ethylene and propylene having a melt index in the range of from 0.1 to 30 dg/min;   (c) 300-900 parts by weight of a functionalized polyalkylene; (d) 5-150 parts by weight of polyisobutylene having an average viscosity molecular weight in the range of from 40,000 to 5,000,000;   (e) 100-1500 parts by weight of a filler; and (f) 0-50 parts by weight of additives, such as antioxidants, flame retarders, antistatica, colouring agents and stabilizers. p
Patent FI-111082-B (FI)
Inventor: MORINI GIAMPIERO
IPC: C08F10/00
Filed: 1993-09-22
Granted: 2003-05-30
Abstract: Disclosed are catalyst components for the polymerization of olefins comprising magnesium halide in active form, and, supported thereon, a titanium halide or titanium halogen alcoholate and an electron-donor compound selected from the diamines of formula <CHEM> wherein the radicals R1 to R10 are the same or different and are hydrogen or C1-C18 hydrocarbon radicals, with the proviso that at least one of the R7 and R8 radicals and at least one of the R9 and R10 radicals are not hydrogen. Also, disclosed are catalysts obtained from said catalyst components and an Al-alkyl compound, as well as catalysts obtained by reaction of an Al-alkyl compound and a diamine of formula (I) with a solid catalyst component comprising a titanium halide or a titanium halogen alcoholate, and an electron-donor compound having particular characteristics of extractability with Al-triethyl, supported on magnesium halide in active form.